Greatex said: “There should be no reward for what is at worst complicit, and at best complacent, mismanagement.”

The Perth company’s profits are expected to be about £1.4billion – up around five per cent on last year.

They are hardly dented by the mis-selling scandal that saw them fined a record £10.5million in April by energy watchdog Ofgem.

Ofgem cited a “woeful catalogue of failures” by SSE that led to years of mis-selling over the phone, in stores and on customers’ doorsteps.

SSE stopped door-to-door sales in 2011 but dodgy practices continued in their other sales channels until September 2012. Thousands of customers were led to believe that they would save money by signing up with the SSE and their company Scottish Hydro.

Greatrex said: “For too long the big energy companies, including SSE, have been allowed to get away with questionable sales tactics and rip-off bills.

“It would be completely unacceptable for the energy bosses responsible for this scandal to get any kind of bonus when SSE announce their financial results.”

Tom Greatrex the Labour MP for Rutherglen

The company have set aside £5million to deal with compensation claims and have had complaints from 14,000 customers.

In a bid to draw a line under the scandal, retiring chief executive Ian Marchant has extended the compensation period back to 2008 and promised any money left over from the fund will be given to charity.

But Rutherglen and Hamilton West MP Greatrex said: “Anybody who has been ripped off by SSE should be compensated by the company.”